The E-RWB Is a Wide-Bodied, Tesla-Powered 1977 Porsche 911

In reply to jerrysarcastic (Forum Supporter) :

I sold my long term '66 912 project (rolling chassis, no engine) to a guy in the Austin area that is dropping in a Tesla drivetrain. I miss the car, but it'll be cool to see it electrified.

nocones said:

I can't get over how amazing those seats look.  As a low back vintage look seat that has some modern nods they nailed it.  

the seats are just 356 Speedster seats , I am sure replica ones , 

they are not really comfortable for long rides , but look right  :)

I wonder how your head is not going to smash into the roll cage  when you are doing speed runs....

And this was built  a year or 2 ago , when Tesla "transplants" were rare ......

californiamilleghia said:

nocones said:

I can't get over how amazing those seats look.  As a low back vintage look seat that has some modern nods they nailed it.  

the seats are just 356 Speedster seats , I am sure replica ones , 

they are not really comfortable for long rides , but look right  :)

Well, considering what happened, luckily no one was hurt.  

I wonder how your head is not going to smash into the roll cage  when you are doing speed runs....

And this was built  a year or 2 ago , when Tesla "transplants" were rare ......

Some things I'm curious about:

How much weight is pulled out of a Tesla when the batteries and motors are removed? Is the majority of a Tesla's weight in those components? Or the body/interior/etc? 

In the case of the "E-RWB" how much did the stock drivetrain weigh compared the Tesla's single motor and what I assume is as a smaller battery pack?

Another question , 

Do these conversions have a "limp home"  setting that when you only have 20% of power or so you are limited to 50 mph  or whatever speed gives you the most range to get home or to a charge station ?

In reply to pheller :

This porsche appears to have an EV West swap kit. They say their basic 911 swap weighs 250lbs, but that does not include the battery and I don't think it's motor is the same as the Tesla motor in this car.

Google says a Tesla Model S motor weighs around 70lbs. No idea how that would change the weight of the EV west kit. It could even remove some.

Reports are that this car has a 32kwh battery. A 40kwh battery pack from a Leaf is around 450lbs and would give a max range around 150 miles. So this should be about 80% of those figures (360lbs battery, 120 miles of range).

So, somewhere between 550-700lbs for the EV powertrain seems plausible to me.

Based on some forum posts, etc a stock aircooled, flat 6 might be 450lbs + transaxle, fuel tank, exhaust, etc.

In reply to STM317 :

Indeed, seems like the motor weighs what the fuel tank did (full), and the battery weighs what the drivetrain did.

Kind of neat, really.

You do need to take inverters and battery cooling into account for weight, especially when you're comparing to a car that didn't have a cooling system :)

I've pointed out a bunch of times (mostly because I have a hard time believing it myself) - my dual motor Model 3 is almost exactly the same weight as my E39 M5. I'm pretty sure Tesla spent a lot of time getting the rest of the body and interior as light as possible.

Keith Tanner said:

You do need to take inverters and battery cooling into account for weight, especially when you're comparing to a car that didn't have a cooling system :)

Perhaps they went with aircooled batteries from a Leaf or something to maintain historical continuity (and definitely not to make the swap cheaper/easier)?

Keith Tanner said:

I've pointed out a bunch of times (mostly because I have a hard time believing it myself) - my dual motor Model 3 is almost exactly the same weight as my E39 M5

With the significant advantage of being able to place most of that mass (e.g. the batteries) as low in the chassis as possible, plus all that instant torque.

Its hard to see how EV doesn’t win the long game here...

pheller said:

Some things I'm curious about:

How much weight is pulled out of a Tesla when the batteries and motors are removed? Is the majority of a Tesla's weight in those components? Or the body/interior/etc?

I'm pretty sure dropping the entire pack and the motors is easily a third the weight of a Tesla, but as Elon momentarily described in his recent interview with Sandy Munroe those battery packs are terrible in crashes because the cells can't be expected to absorb or shear any of the force. So packs are heavy- but a lot of that weight is in the bespoke cooling system (18650 and 21700 cells aren't purpose-built to be cooled for these applications, and battery cooling is why their 4680s are going to be the game changer imo) and the materials needed to take crash damage, not nessesarily in "battery" alone.